Marantz DV-17, Руководство по обслуживанию

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1.12 MICROPROCESSOR AND IC DATA
TMP87CH74
Pin No. Port Name I/O FUNCTION
1 S OUT(F to M) O Serial data out put for Mecha unit
2 RESET_OUT O Reset signal for Mecha unit L:Reset
3 MODEL I GND
4 XRDY O Communication handshake line for Mecha unit d
5 SC_MUTE O Audio mute control for Scart L:Mute
6 SQEEZE I 16:9 squeeze signal from Mecha unit L:16:9, H:4:3
7 VSS GND
8 XOUT O 8MHz Osillater connecting
9 XIN I 8MHz Osillater connecting
10 RESET I Reset signal input L:Reset
11 VERSION1 I Destination setting
12 VERSION2 I Destination setting
13 TEST
14 VERSION3 I Destination setting
15 S_MUTE O Audio mute control L:Mute
16 STB_LED O Standby LED control L:Standby
17 VSEL2 I Video switching signal for Scart
18 STB_CONT O Standby control signal for Mecha unit L:Standby
19 V_MUTE O Video mute signal L:Mute
20 LT1 I Communication response signal input from Mecha unit L:Busy, H:Ready
21 D_BUS_IN I Remote signal input
22 INT4/TC3 I Remote signal input
23 SC_SCL O Serial clock output (I2C)
24 SC_SDA I/O Serial data input/output (I2C)
25 GND
26 FL_OFF_LED O FL OFF LED control L:Standby
27 KEY IN0 I Key scan input
28 KEY IN1 I Key scan input
29 KEY IN2 I Key scan input
30 Reserve I Reserve (5V)
31 VSEL1 I Video switching signal for Scart
32 REM_CODE I Remote code setting
33 GND GND
34 KEY OUT0 O Key scan output
35 KEY OUT1 O Key scan output
36 KEY OUT2 O Key scan output
37 KEY OUT3 O Key scan output
38 GND GND
39 +5V I A/D Reference voltage
40 +5V Power supply
41 NC
42 NC
43 G11 O VFT Grid output
44 G10 O VFT Grid output
45 G9 O VFT Grid output
46 G8 O VFT Grid output
47 G7 O VFT Grid output
48 G6 O VFT Grid output
49 G5 O VFT Grid output
50 G4 O VFT Grid output
51 G3 O VFT Grid output
52 G2 O VFT Grid output
53 G1 O VFT Grid output
54 NC
55 NC
56 NC
57 P21 O VFT Segment output
58 P20 O VFT Segment output